Linked Life Data

18951858

Source:http://linkedlifedata.com/resource/pubmed/id/18951858

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2008-12-29
pubmed:abstractText
A novel method for the preparation of gelatin scaffolds was designed by varying the crosslinking temperature. Four pore size ranges of genipin-crosslinked gelatin scaffolds were made by varying the crosslinking temperature from 10 to 25 degrees C, with the pore sizes ranging from 50 to 500 microm. The pore size of the scaffold increases as the crosslinking temperature increases. Articular chondrocytes of Wistar rats were in vitro cultured in these scaffolds. DNA assay, glycosaminoglycan (GAG) assay, hematoxylin-eosin staining, Safranin-O staining and reverse transcription-polymerase chain reaction were performed to analyze the effect of the pore size on cell growth and the secretion of extracellular matrix (ECM). As the pores become larger, the rate of cell growth and the amount of GAG secretion increase, and the expressions of all four gene markers for aggrecan, collagen type I, collagen type II and collagen type X increase. The cells in the smaller pores often show a dedifferentiated form. The phenotype of the cells is maintained better in larger pores. Chondrocytes prefer the group of scaffolds with pore size between 250 and 500 microm for better proliferation and ECM production. The size of the space for cell growth is a key factor for cell metabolism.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
1878-7568
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
5
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
670-9
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Effect of pore size on ECM secretion and cell growth in gelatin scaffold for articular cartilage tissue engineering.
pubmed:affiliation
Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan, ROC.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't